| 发表于：2007-08-08 12:30:58 楼主 |
现在有3张表，student（id ,name),course（id,name),score（引用student.id,引用course.id,score,examtime),2个实体类（student,course),其中student类中有（long id;string name;list <studentcoursepair> pairs）,一个组建类（studentcoursepair),组建类中引用了一个student类，引用了一个course类。在对应的student类的student.hbm.xml文件中
<class name= "student " table= "students ">
<id name= "id " column= "pkid " type= "long ">
<generator class= "identity "/>
</id>
<property name= "name " column= "[name] " type= "string "/>
<bag name= "pairs " table= "student_course " inverse= "true ">
<key column= "fk_student "/>
<composite-element class= "studentcoursepair ">
<parent name= "student "/>
<many-to-one name= "course " column= "fk_course " class= "course "/>
<property name= "score " column= "examscore " type= "int "/>
<property name= "time " column= "examtime " type= "date "/>
</composite-element>
</bag>
</class>
中间的 <many-to-one> 多方和一方分别是指哪个类？是不是pair to course？ |
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